问题 解答题
计算下面各题,能用简便方法的要用简便方法计算.
(1)
44
9
×
3
8
×
6
11
(2)
3
4
+
3
4
÷
1
7
(3)35×(
4
7
-
2
5
)
(4)
4
5
÷(3-
4
15
-
11
15
)
(5)(0.75-
3
16
)×(
2
9
+
1
3
)
(6)
6
7
-
6
7
÷6
答案

(1)

44
9
×
3
8
×
6
11

=

44
9
×
6
11
×
3
8

=

8
3
×
3
8

=1;

(2)

3
4
+
3
4
÷
1
7

=5×

3
4
+
3
4
×7,

=(5+7)×

3
4

=12×

3
4

=9;

(3)35×(

4
7
-
2
5
),

=35×

4
7
-35×
2
5

=20-14,

=6;

(4)

4
5
÷(3-
4
15
-
11
15
),

=

4
5
÷[3-(
4
15
+
11
15
)],

=

4
5
÷[3-1],

=

4
5
÷2,

=

2
5

(5)(0.75-

3
16
)×(
2
9
+
1
3
),

=

9
16
×
5
9

=

5
16

(6)

6
7
-
6
7
÷6,

=7-

1
7

=6

6
7

单项选择题 A1/A2型题
多项选择题